TAS2559
- Ultra low-noise mono boosted class-D amplifier
- 5.7 W at 1% THD+N and 6.9 W at 10% THD+N into 4-Ω load from 4.2-V supply
- 3.8 W at 1% THD+N and 4.5 W at 10% THD+N into 8-Ω load from 4.2-V supply
- Output noise for DAC + class-D (ICN) is 15.9 µV
- DAC + class-D SNR 111 dB at 1%THD+N/8 Ω
- THD+N –90 dB at 1 W / 8 Ω with flat frequency response
- PSRR 110 dB for 200 mVpp ripple at 217 Hz
- Input sample rates from 8 kHz to 96 kHz
- Built-in speaker sense
- Measures speaker current and voltage
- Measures VBAT voltage, chip temperature
- Dedicated real-time
DSP for speaker protection
- Thermal and excursion protection
- Detects speaker leaks and damage
- High efficiency class-H boost converter with
multi-level tracking
- 86% at 500 mW in 8 Ω with 3.6 V VBAT
- 87% at 700 mW in 8 Ω with 4.2 V VBAT
- Configurable automatic
gain control (AGC)
- Limits battery current consumption
- Adjustable class-D switching edge-rate control
- Thermal, short-circuit, and under-voltage protection
- I2S, Left-justified, right-justified, DSP, and TDM input and output interface,
- I2C or SPI interface for register control
- Stereo configuration using the TAS2559 and TAS2560 devices
- Power supplies
- Boost input: 2.9 V to 5.5 V
- Analog/digital: 1.65 V to 1.95 V
- Digital I/O: 1.62 V to 3.6 V
- 42-ball, 0.5-mm pitch, DSBGA package
The TAS2559 device is a state-of-the-art Class-D audio amplifier which is a full system on a Chip (SoC). The device features a ultra low-noise audio DAC and Class-D power amplifier which incorporates speaker voltage and current sensing feedback. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions.
The device can be used easily with any processor with an I2S output and stereo implementations are possible when using two TAS2559 devices. Separate tuning for different speakers is supported allowing customers to add value while maintaining form factor designs. Additionally, the TAS2559 supports separate voice and audio tuning dynamically with ultra-low 15.9 µV ICN regardless of mode of operation making receiver/speaker implementations possible.
A Class-H boost converter generates the Class-D amplifier supply rail. When the audio signal only requires a lower Class-D output power, the boost improves system efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply. When higher audio output power is required, the multi-level boost quickly activates tracking the signal to provide the additional voltage to the load.
結合 TAS2559 和 TAS2560，可提供具備即時 I/V 感測防護的完整立體聲解決方案。立即檢視 TAS2560。
若要申請存取 PurePathâ„¢ Console 3 和其他設計資源的權限：索取 TAS2559
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設計與開發
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PP-SALB2-EVM — PP-SALB2-EVM 智慧放大器喇叭特性化基板評估模組 (學習板 2)
此電路板支援：TAS2555YZEVM、TAS2557EVM 及 TAS2559EVM。
智慧型放大器喇叭特性化基板與支援的 TI 智慧型放大器和 PurePath Console 軟體一起使用時，可讓使用者測量喇叭偏移、溫度及其他參數，以搭配 TI 智慧型放大器產品使用。 整個解決方案提供方便使用的逐步程序，引導您完成整個喇叭特性化程序。 完成特性化後，喇叭參數會自動載入 PurePath Console 中，以便開始進行微調，並透過喇叭保護功能獲得最佳音質。
TAS2559EVM — TAS2559 5.7W D 類音訊放大器評估模組
PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console 是一款高度整合且容易使用的音訊開發套件，專爲簡化音訊產品開發相關評估、配置和偵錯程序所設計。瞭解使用 PurePath™ Console 3 軟體有多簡單。
PurePath Console 的直覺式圖形介面無需進階音訊工程專業，因此讓音訊設計更加簡明直觀。在簡單易用的圖形介面中，實作 PurePath Console 的眾多進階控制功能，並以縮短產品開發時間為目標，為您實現高度最佳化的音訊性能、最低功耗和順暢系統整合。支援的裝置：
PurePath™ Console 1：PCM5142、TAS5721、TAS5729MD、TAS5731 和 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YZ) | 42 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。